In early years, Wedgeworth had main roles on the daytime soap operas. She played the roles of Angela Talbot on The Edge of Night from 1966 to 1967, and later joined the cast of Another World as Lahoma Vane Lucas. She played the role from 1967 to 1970, and from 1970 to 1973 appeared on its spinoff, Somerset.[6][1]

In 1979, Wedgeworth was cast as divorcée Lana Shields on the hit ABC sitcom Three's Company. Her character was brought on the show to fill the void left by Audra Lindley, who had left to star in the show's spin-off, The Ropers. According to behind-the-scene reports, the addition of Lana to the cast caused tension between series star John Ritter and the show's writers. Ritter believed it would be out of character for his character, the womanizing Jack Tripper, to inexplicably turn down the advances of Lana, a sexually voracious, attractive older woman. The writers reasoned that because Lana was older than Jack, he would be turned off. Ritter did not believe that the middle-aged Lana, only meant to be in her 40s (whereas Jack was in his late 20s/early 30s), would repel Jack. Wedgeworth claimed that she asked to be released from her contract because of Lana's dwindling role in the show.[7]

Wedgeworth appeared in just nine episodes of the series before her character was casually written out without any explanation and never referred to again.[8]

In 1982, Wedgeworth worked with Linda Bloodworth-Thomason in her first comedy series, Filthy Rich, playing ditsy, good-natured Bootsie Westchester. The series was canceled after two seasons in 1983. In 1989, she guest-starred as Audrey Conner, the emotionally fragile mother of Dan Conner (played by John Goodman) on the ABC sitcom, Roseanne. Her longest role was on the CBS sitcom Evening Shade as Merleen Eldridge. The series aired from 1990-94. In 1994, Wedgeworth starred in the unsuccessful Evening Shade spin-off, Harlan & Merleen.

Wedgeworth married Rip Torn in 1955. They have a daughter, actress Danae Torn. The couple divorced in 1961.[8] In 1970, she married acting teacher and director Ernie Martin, and, in 1972, had a daughter, actress/acting teacher/writer Diánna Martin.[1]

^Garfield, David (1980). "Appendix: Life Members of The Actors Studio as of January 1980". A Player's Place: The Story of The Actors Studio. New York: MacMillan Publishing Co. Inc. p. 278. ISBN0-02-542650-8.